A stirring device for preparing high-temperature resistant inorganic adhesives

Abstract

This utility model relates to the field of inorganic adhesive preparation, specifically disclosing a stirring device for preparing high-temperature resistant inorganic adhesives. The device includes a stirring tank, a grinding cylinder above the stirring tank, a feeding trough above the grinding cylinder, a motor at the bottom of the stirring tank, a rotating shaft connected to the motor, the rotating shaft passing through the bottom of the stirring tank and located inside the stirring tank, a stirring blade fixedly connected to the rotating shaft, and a grinding roller connected to the top of the rotating shaft. The grinding roller is located inside the grinding cylinder, and grinding blocks are arranged on the inner wall of the grinding cylinder. By setting a grinding cylinder on the stirring tank and grinding the mixed powder entering the stirring tank, large agglomerates in the powder being mixed can be prevented, thus preventing the problem of reduced mixing efficiency caused by large agglomerates making mixing difficult.

Description

Technical Field

[0001] This utility model relates to the field of inorganic adhesive preparation, specifically to a stirring device for preparing high-temperature resistant inorganic adhesives. Background Technology

[0002] High-temperature resistant inorganic adhesives are a type of special adhesive designed for extreme high-temperature environments. Their main applications are in aerospace, metallurgy, electronics manufacturing, and automotive. The main components of high-temperature resistant inorganic adhesives are inorganic compounds (such as phosphates, silicates, copper oxides, etc.) as the matrix, which form a neutral suspension dispersion system through the condensation reaction of nanomaterials.

[0003] High-temperature resistant inorganic adhesives are generally prepared using a high-temperature sintering method. This method does not require complex equipment and is suitable for large-scale industrial production. In the process of high-temperature sintering, mixed powders of raw materials such as aluminum phosphate and aluminum silicate are mixed with phosphoric acid, and then water is added and stirred evenly. During the stirring process, it is found that some raw material powders may solidify due to problems such as long-term storage. The stirring process requires a long time to ensure that they are fully mixed. However, long-term operation not only consumes a lot of energy, but also has low efficiency. Utility Model Content

[0004] This utility model aims to solve the technical problems mentioned in the background section above, and proposes the following technical solutions:

[0005] A stirring device for preparing a high-temperature resistant inorganic adhesive includes a stirring tank, a grinding cylinder above the stirring tank, a feeding trough above the grinding tank, a motor at the bottom of the stirring tank, a rotating shaft connected to the motor, the rotating shaft passing through the bottom of the stirring tank and located inside the stirring tank, a stirring blade fixedly connected to the rotating shaft, a grinding roller connected to the top of the rotating shaft, the grinding roller located inside the grinding cylinder, a feeding trough at the top of the grinding roller, a plurality of grinding channels inside the grinding roller, one end of the plurality of grinding channels communicating with the feeding trough, the other end of the plurality of grinding channels located on the outer periphery of the grinding roller, and grinding blocks provided on the inner wall of the grinding cylinder.

[0006] Preferably, the mixing tank, grinding cylinder and discharge trough are connected by threads.

[0007] Preferably, a limiting ring is provided on the outer periphery of the grinding roller, and a limiting groove is provided on the inner wall of the grinding cylinder, with the limiting ring located within the limiting groove.

[0008] Preferably, the grinding roller has a frustum structure that is smaller at the top and larger at the bottom, and the grinding channel has a sloping structure from the center of the grinding roller outwards.

[0009] Preferably, the grinding roller is provided with a feeding channel, which is a closable structure.

[0010] The beneficial effects of this utility model are:

[0011] 1. By setting a grinding cylinder on the mixing tank and grinding the powder entering the mixing tank, large agglomerates in the powder being mixed can be prevented, thus preventing the problem of reduced mixing efficiency caused by large agglomerates making it difficult to mix.

[0012] 2. By setting a limiting ring on the outer periphery of the grinding roller and a limiting groove on the inner wall of the grinding cylinder, and setting the limiting ring in the limiting groove, the grinding roller will not have a large gap between the grinding roller and the grinding cylinder due to shaking when it rotates, which would cause large clumps to fall into the mixing tank and increase the difficulty of mixing.

[0013] 3. By setting the grinding roller as a frustum structure with a smaller top and a larger bottom, and setting the grinding channel as a sloping structure with the center extending downwards, the feeding speed and mixing efficiency can be improved.

[0014] 4. By setting a feeding channel on the grinding roller, it is possible to avoid contact between the acidic solution and the mixed powder inside the grinding cylinder when adding acidic solution. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 for Figure 1 Enlarged view of the area circled in the middle;

[0017] Figure 3 This is a schematic diagram of the structure of the present invention in Embodiment 2;

[0018] Figure 4 for Figure 3 Enlarged view of the area circled in the middle;

[0019] Figure 5 This is a cross-sectional view of the grinding roller in Example 3;

[0020] Figure 6 This is a schematic diagram of the grinding roller structure in Example 4.

[0021] In the diagram: 1. Mixing tank; 2. Grinding cylinder; 2-1. Limiting groove; 3. Discharge chute; 4. Motor; 5. Rotating shaft; 6. Mixing blades; 7. Grinding roller; 7-1. Feeding chute; 7-2. Grinding channel; 8. Grinding block; 9. Limiting ring; 10. Discharge channel; 11. Heating cover; 11-1. Gap; 12. Ceramic heating plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] In the description of this utility model, it should be understood that relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. The connection methods described by the terms "fixed connection" and "fixed setting" include, but are not limited to, "welding," "riveting," "adhesion," and "threaded connection." The terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0024] The terms “upper,” “lower,” “front,” “back,” “left,” “right,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Example 1

[0026] Reference Figure 1-2 A stirring device for preparing a high-temperature resistant inorganic adhesive includes a stirring tank 1, a grinding cylinder 2 above the stirring tank 1, a feeding trough 3 above the grinding cylinder 2, a motor 4 at the bottom of the stirring tank 1, a rotating shaft 5 connected to the motor 4, the rotating shaft 5 passing through the bottom of the stirring tank 1 and located inside the stirring tank 1, a stirring blade 6 fixedly connected to the rotating shaft 5, a grinding roller 7 connected to the top of the rotating shaft 5, the grinding roller 7 located inside the grinding cylinder 2, a feeding trough 7-1 at the top of the grinding roller 7, a plurality of grinding channels 7-2 inside the grinding roller 7, one end of the plurality of grinding channels 7-2 communicating with the feeding trough 7-1, the other end of the plurality of grinding channels 7-2 located on the outer periphery of the grinding roller 7, and grinding blocks 8 on the inner wall of the grinding cylinder 2.

[0027] Preferably, the mixing tank 1, the grinding cylinder 2 and the discharge trough 3 are connected by threads.

[0028] In actual operation, the acidic solution is first poured into the mixing tank 1, and then the grinding cylinder 2 and the feeding trough 3 are installed in sequence. Then, an appropriate amount of mixed powder is poured into the feeding trough 3. The mixed powder will slide down along the feeding trough 7-1 in the middle of the grinding roller 7 and the gap between the grinding roller 7 and the grinding cylinder 2. At this time, the motor 4 is started, and the motor will drive the rotating shaft 5 to rotate. The rotating shaft 5 drives the grinding roller 7 and the stirring blade 6 to rotate respectively. During the rotation of the grinding roller 7, it will further grind the mixed powder together with the grinding block 8. The ground powder falls into the mixing tank 1 and is mixed and stirred under the action of the stirring blade 6. This stirring device can grind the mixed powder before mixing, and prevent large lumps of mixed powder from forming after entering the mixing tank, which would affect the mixing speed and quality.

[0029] Example 2

[0030] Reference Figure 3-4 The difference between this embodiment and the first embodiment is that, in order to prevent the grinding roller 7 from shaking during rotation, a limiting ring 9 is provided on the outer periphery of the grinding roller 7. A limiting groove 2-1 is provided on the inner wall of the grinding cylinder 2. The limiting ring 9 is located in the limiting groove 2-1. In this way, the grinding roller 7 can rotate along the limiting groove 2-1, avoiding large clumps from falling into the mixing tank 1 from the gap due to shaking.

[0031] Example 3

[0032] Reference Figure 5 The difference between this embodiment and embodiment one is that by setting the grinding roller 7 as a frustum structure with a smaller top and a larger bottom, and the grinding channel 7-2 having a downward inclined structure from the center of the grinding roller 7, the feeding speed can be faster.

[0033] Example 4

[0034] Reference Figure 6 The difference between this embodiment and embodiment one is that a feeding channel 10 is provided on the re-grinding roller 7, and a cover that can be opened and closed is provided on the feeding channel 10. The worker can replenish the acid solution through the feeding channel, and the feeding channel of the acid solution and the mixed powder can be separated to avoid the two mixing in the feeding channel and forming an adhesive that blocks the channel.

Claims

1. A stirring device for preparing a high-temperature-resistant inorganic adhesive, comprising a stirring barrel (1), characterized in that, A grinding cylinder (2) is provided above the mixing tank (1), and a feeding trough (3) is provided above the grinding cylinder (2). A motor (4) is provided at the bottom of the mixing tank (1), and a rotating shaft (5) is connected to the motor (4). The rotating shaft (5) passes through the bottom of the mixing tank (1) and is located inside the mixing tank (1). A stirring blade (6) is fixedly connected to the rotating shaft (5). A grinding roller (7) is connected to the top of the rotating shaft (5). The grinding roller (7) is located inside the grinding cylinder (2). A feeding trough (7-1) is provided at the top of the grinding roller (7). Several grinding channels (7-2) are provided inside the grinding roller (7). One end of several grinding channels (7-2) is connected to the feeding trough (7-1), and the other end of several grinding channels (7-2) is located on the outer periphery of the grinding roller (7). A grinding block (8) is provided on the inner wall of the grinding cylinder (2).

2. The stirring device for preparing high-temperature resistant inorganic adhesives according to claim 1, characterized in that, The mixing tank (1), grinding cylinder (2) and discharge trough (3) are connected by threads.

3. The stirring device for preparing high-temperature resistant inorganic adhesives according to claim 1, characterized in that, The grinding roller (7) is provided with a limiting ring (9) on its outer periphery. The grinding cylinder (2) is provided with a limiting groove (2-1) on its inner wall. The limiting ring (9) is located in the limiting groove (2-1).

4. The stirring device for preparing high-temperature resistant inorganic adhesives according to claim 1, characterized in that, The grinding roller (7) has a frustum structure with a smaller top and a larger bottom, and the grinding channel (7-2) has a sloping structure from top to bottom from the center of the grinding roller (7) to the surrounding area.

5. The stirring device for preparing high-temperature resistant inorganic adhesives according to claim 1, characterized in that, The grinding roller (7) is provided with a feeding channel (10), which is a closable structure.

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